Bloomfield graduated from the USAF Academy in 1981. From 1983 until 1991, he served as a combat ready pilot and instructor pilot in the F-15 and F-16. Selected by NASA in December 1994 to report to the Johnson Space Center. He worked as Chief of Safety for the Astronaut Office, Chief Instructor Astronaut, Director of Shuttle Operations, and Chief of the Shuttle Branch which oversees all Shuttle technical issues for the Astronaut Office. His last NASA position was Deputy Director, Flight Crew Operations, overseeing the Astronaut Office and flying operations at Ellington Field.

A veteran of three space flights, STS-86 (1997), STS-97 (2000) and STS-110 (2002), he has logged over 753 hours in space. Bloomfield left NASA in August 2007 to pursue a career with ATK.

Mike is currently on stand by though AIMS LLC to assist SpaceX with Mars mission planning.